CN103979808A - Cement admixture prepared from tungsten tailings and application of cement admixture - Google Patents
Cement admixture prepared from tungsten tailings and application of cement admixture Download PDFInfo
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- CN103979808A CN103979808A CN201410242640.3A CN201410242640A CN103979808A CN 103979808 A CN103979808 A CN 103979808A CN 201410242640 A CN201410242640 A CN 201410242640A CN 103979808 A CN103979808 A CN 103979808A
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- tungsten
- tungsten tailings
- cement admixture
- mine tailing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The invention provides a cement admixture prepared from tungsten tailings and an application of the cement admixture, and belongs to the field of comprehensive utilization of solid wastes. The cement admixture comprises the tungsten tailings and quicklime, wherein the adding amount of the quicklime accounts for 0% to 15% by the mass of the tungsten tailings; the content of garnet in the tungsten tailings is higher than 70%; the tungsten tailings are mechanically and chemically activated so as to prepare the cement admixture. A mechanical activation method comprises the following step: preparing fine powder of the tungsten tailings via a classification method in a superfine processing manner, wherein the superfine processing comprises ball milling, airflow milling or vibration milling; the classification comprises screening and air classification. A chemical activation method comprises the following step: adding a chemical excitation agent, wherein the quicklime is taken as the chemical excitation agent. The prepared cement admixture can be used for preparing different grades of silicate cement meeting the requirement of national standard. The preparation method is simple and easy to implement; the cement admixture is produced by utilizing the tungsten tailings, so that the large-scale utilization of the tungsten tailings is realized. Thus, the additional value of the tungsten tailings is greatly increased; the cement production cost is lowered. Thus, the preparation method provided by the invention has good economic and social effects.
Description
Technical field
The present invention relates to a kind of tungsten tailings water cement mixture and application thereof, belong to solid waste comprehensive utilization field.
Background technology
Tungsten mine tailing is the solid waste that tungsten ore produces after sorting, and its essential mineral consists of garnet.Major storage enters mine in Tailings Dam or backfill at present, causes the wasting of resources, and land occupation, contaminate environment, harm humans health.From tungsten resource of tailings practical situation, carry out the research of tungsten comprehensive utilization of tailing, realize tungsten mine tailing higher value application, to improving resource utilization, improve the ecological environment, be of great significance.
Cement mixture is in cement production process, and for improving cement performance, regulating cement mark to be added to the mineral material in cement, conventional cement mixture has blast furnace slag, volcanic ash, flyash, Wingdale, clay etc. at present.Domestic tungsten mine tailing is useful on produces devitrified glass, pottery, non-burning brick and hollow brick, but quantity is very limited, yet there are no the correlative study report used as cement mixture.
Summary of the invention
The object of the present invention is to provide a kind of tungsten tailings water cement mixture and application thereof; In a kind of novel concrete blended material of exploitation, it is also the approach that this solid waste of tungsten mine tailing is found a kind of more high value added utilization.
A kind of tungsten tailings water cement mixture of the present invention, described blended material comprises tungsten mine tailing and unslaked lime, the per-cent that the addition of described unslaked lime accounts for tungsten mine tailing quality is 0%-15%.In tungsten mine tailing of the present invention, garnet content is higher than 70%.
A kind of tungsten tailings water cement mixture of the present invention, described tungsten mine tailing is through mechanical activation and chemical activation.
A kind of tungsten tailings water cement mixture of the present invention, described mechanical activation method is for passing through super-fine processing grading system for tungsten mine tailing fine powder, and super-fine processing comprises ball milling, airflow milling or vibration mill, and classification comprises screening and air classifying.
A kind of tungsten tailings water cement mixture of the present invention, described chemical activation method is for adding chemical activator, and chemical activator is unslaked lime.
The application of a kind of tungsten tailings water cement mixture of the present invention, described application comprises the silicate cement that utilizes the preparation of tungsten tailings water cement mixture to meet the different labels of GB requirement, contains the blended material that accounts for cement total mass 10%-30% in described silicate cement.
The present invention has the following advantages and positively effect:
(1) simple, the Yi Hang of preparation method of the present invention, utilizes tungsten mine tailing to produce cement mixture, can realize the mass-producing utilization of tungsten mine tailing, greatly improves the added value of tungsten mine tailing.
(2) raw material sources required for the present invention are extensive, cheap, and activated tungsten mine tailing after treatment, as cement mixture, can reduce manufacture of cement cost.
(3) activation method of the present invention can effectively improve tungsten mine tailing activity, and technique is simple, and equipment requirements is low, convenient operation.
(4) the tungsten tailings water cement mixture that prepared by the present invention can be prepared the cement of different labels according to demand, and cement quality can ensure.
Embodiment
In order to understand better the present invention, further illustrate content of the present invention below in conjunction with embodiment, but the present invention is not limited to following examples, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, also may make various variations.Therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Embodiment 1:
Prepare cement mixture with tungsten mine tailing, the superfine processing method of tungsten mine tailing, its operation steps comprises: tungsten mine tailing is dried to moisture content below 5%, carry out ore grinding with cylindrical ball mill, taking steel ball as ball-milling medium, ratio of grinding media to material is 6: 1, every batch of ore grinding 30kg, and different Ball-milling Time tungsten mine tailing size-grade distribution are as follows.
The different Ball-milling Time tungsten of table 1 mine tailing size-grade distribution
Embodiment 2:
Prepare cement mixture with tungsten mine tailing, the superfine processing method of tungsten mine tailing, its operation steps comprises: tungsten mine tailing is dried to moisture content below 5%, and with the ball grinder graded super-fine processing of carrying out, taking corundum ball as ball-milling medium, super-fine processing test parameter is as follows.
Table 2 different grain size tungsten product from failing test parameter
Product | Product one | Product two | Product three |
Grading rotor frequency (Hz) | 11.5 | 24 | 34 |
Finished product yield (kg/h) | 1500 | 600 | 350 |
(D90/ μ m) for finished product grain size | 30.03 | 17.33 | 8.47 |
?embodiment 3:
Prepare the application of cement mixture with tungsten mine tailing, the cement of the tungsten tailings water cement mixture preparation different labels of the different amounts of admixture, formula and intensity are as follows.
Table 3 tungsten tailings water cement mixture preparation cement formula
Formula | Grog (%) | Gypsum (%) | Tungsten mine tailing (%) | Unslaked lime (%) | Tungsten mine tailing-400 order content (%) |
Formula one | 87.5 | 2.5 | 10 | 0 | 82.88 |
Formula two | 77.5 | 2.5 | 20 | 0 | 82.88 |
Formula three | 67.5 | 2.5 | 30 | 0 | 82.88 |
Formula four | 77.5 | 2.5 | 20 | 0 | 66.57 |
Formula five | 77.5 | 2.5 | 20 | 0 | 92.32 |
Formula six | 77.5 | 2.5 | 18 | 2 | 82.88 |
Table 4 tungsten tailings water cement mixture preparation strength of cement
Embodiment 4:
Prepare the application of cement mixture with tungsten mine tailing, admixture 20% tungsten tailings water cement mixture preparation can meet the PO.42.5 cement that GB requires, and every detected result is as follows.
Table 5 tungsten tailings water cement mixture preparation PO.42.5 cement detected result
Claims (5)
1. a tungsten tailings water cement mixture, described cement mixture comprises tungsten mine tailing and unslaked lime, the per-cent that the addition of described unslaked lime accounts for tungsten mine tailing quality is 0%-15%.In tungsten mine tailing of the present invention, garnet content is higher than 70%.
2. a kind of tungsten tailings water cement mixture according to claim 1, is characterized in that: described tungsten mine tailing is through mechanical activation and chemical activation.
3. a kind of tungsten tailings water cement mixture according to claim 1 and 2, it is characterized in that: described mechanical activation method is for passing through super-fine processing grading system for tungsten mine tailing fine powder, super-fine processing comprises ball milling, airflow milling or vibration mill, and classification comprises screening and air classifying.
4. a kind of tungsten tailings water cement mixture according to claim 1 and 2, is characterized in that: described chemical activation method is for adding chemical activator, and chemical activator is unslaked lime.
5. the application of a tungsten tailings water cement mixture as claimed in claim 1, it is characterized in that: described application comprises the silicate cement that utilizes the preparation of tungsten tailings water cement mixture to meet the different labels of GB requirement, contains the blended material that accounts for cement total mass 10%-30% in described silicate cement.
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105060742A (en) * | 2015-07-27 | 2015-11-18 | 中国科学院武汉岩土力学研究所 | Preparation method for low-grade manganese tailing-based binding material |
CN107540253A (en) * | 2017-09-19 | 2018-01-05 | 华润水泥(富川)有限公司 | A kind of Tungsten tailing common portland cement and preparation method thereof |
CN109626976A (en) * | 2018-12-24 | 2019-04-16 | 湖南柿竹园有色金属有限责任公司 | A method of iron-based garnet ornament materials is prepared using mill tailings |
CN110128042A (en) * | 2019-06-18 | 2019-08-16 | 湖南华晟创元环境科技有限公司 | A kind of technique preparing active addition of cement, concrete admixture with Tungsten tailing |
CN110590198A (en) * | 2019-08-29 | 2019-12-20 | 广东清大同科环保技术有限公司 | Tungsten tailing cementing material and preparation method thereof |
CN114394770A (en) * | 2021-12-31 | 2022-04-26 | 华润水泥技术研发有限公司 | Preparation method of tungsten tailing cement admixture |
CN114409284A (en) * | 2021-12-31 | 2022-04-29 | 华润水泥技术研发有限公司 | Low-carbon portland cement clinker taking tungsten tailings as raw material and preparation method thereof |
CN115716718A (en) * | 2022-11-21 | 2023-02-28 | 华润水泥技术研发有限公司 | Cement prepared from tungsten tailings and preparation method thereof |
CN115959860A (en) * | 2022-11-30 | 2023-04-14 | 华润水泥技术研发有限公司 | Tungsten tailing high-performance admixture for concrete and preparation method thereof |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105060742A (en) * | 2015-07-27 | 2015-11-18 | 中国科学院武汉岩土力学研究所 | Preparation method for low-grade manganese tailing-based binding material |
CN107540253A (en) * | 2017-09-19 | 2018-01-05 | 华润水泥(富川)有限公司 | A kind of Tungsten tailing common portland cement and preparation method thereof |
CN107540253B (en) * | 2017-09-19 | 2018-08-07 | 华润水泥(富川)有限公司 | A kind of Tungsten tailing common portland cement and preparation method thereof |
CN109626976A (en) * | 2018-12-24 | 2019-04-16 | 湖南柿竹园有色金属有限责任公司 | A method of iron-based garnet ornament materials is prepared using mill tailings |
CN109626976B (en) * | 2018-12-24 | 2021-08-10 | 湖南柿竹园有色金属有限责任公司 | Method for preparing iron-based garnet decorative material by using mine tailings |
CN110128042A (en) * | 2019-06-18 | 2019-08-16 | 湖南华晟创元环境科技有限公司 | A kind of technique preparing active addition of cement, concrete admixture with Tungsten tailing |
CN110590198A (en) * | 2019-08-29 | 2019-12-20 | 广东清大同科环保技术有限公司 | Tungsten tailing cementing material and preparation method thereof |
CN110590198B (en) * | 2019-08-29 | 2021-08-10 | 广东清大同科环保技术有限公司 | Tungsten tailing cementing material and preparation method thereof |
CN114394770A (en) * | 2021-12-31 | 2022-04-26 | 华润水泥技术研发有限公司 | Preparation method of tungsten tailing cement admixture |
CN114409284A (en) * | 2021-12-31 | 2022-04-29 | 华润水泥技术研发有限公司 | Low-carbon portland cement clinker taking tungsten tailings as raw material and preparation method thereof |
CN115716718A (en) * | 2022-11-21 | 2023-02-28 | 华润水泥技术研发有限公司 | Cement prepared from tungsten tailings and preparation method thereof |
CN115959860A (en) * | 2022-11-30 | 2023-04-14 | 华润水泥技术研发有限公司 | Tungsten tailing high-performance admixture for concrete and preparation method thereof |
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Application publication date: 20140813 |